Pump for emptying cans



(No Model.) V

H. L. HAUSER.

- PUMP FOR EMPTYING GANS.

No. 364,819. Patented June 14, 1887.

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UNITED STATES PATE T OFFICE,

HORACE L. HAUSER, OF MINNEAPOLIS, MINNESOTA.

PUMP FOR EMPTYING CANS.

SPECIFICATION forming part of Letters Patent No. 364,819, dated June 14, 1887.

Application filed July13,1886. Serial No.207,947l (NomodeL) To aZZ whom it may concern:

' Be it known that I, HORACE L. HAUSER, of Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Pumps for Emptyi ng Cans, 810.; and I do hereby declare that the following isafull, clear, and exact description of the invention, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawing, and to the letters of reference marked thereon, which forni a part I of this specification.

The objects of my invention are, first, an easy method of emptying bulky and heavy cans, casks, 8m; second, to accomplish the same without wasting or spilling the contents; third, to readily withdraw any portion of the liquid from the can, bottle, cask, or the like without soiling the hands, and, fourth, when applied to receptacles containing highly volatile and inflammable liquids to obviate the danger of explosion arising from the ignition of the fluid within such receptacle as they are ordinarily closed and emptied.

It consists, essentially, of an air-pump applied to the upper part of the receptacle, in connection with a discharge tube or pipe extending from near the bottom of thereeeptacle upwardly, and formed at its upper end into an overhanging spout, togetherwith a tube or jacket inclosing said discharge-tube, and a stopper for closing the upper end of said jacket, and of a valve or stopper arranged to be operated from the outer end of said discharge-tube.

The accompanying drawing illustrates, partly in side elevation and partly in section, myimprovements as applied to a can of ordinary form.

A represents the can. D is a flexible bulb, made of rubber or any suitable material, and provided at one end with an inwardly-openin g valve, 0, and at the other end, where it is connected with the tube F, with the outwardlyopening valve (1.

O is a short metallic tube secured inthe top of the can, communicating with the interior thereof and projecting above the same suffieiently to form an attachment for the flexible tube F, by which it isconnected with the bulb l).

B is a metallic tube or pipe extending from near the bottom of the can when in place up through thelarger tube, H, and the screw-cap 5 G, above which it is formed into an overhanging arm, bent downwardly at the end, so as to give the proper direction to the liquid at the 'point of discharge. To prevent the escape of air around the serew-cap G, and to cause the can to be entirely drained by the pump, Iinclose the tube B inside of the can, with the larger tube, H, attached at its upper end by an air-tightjoint to the top of the can, and provided at its lower end, where it rests upon the e bottom of the can, with an opening or openings for the admission of the liquid thereto from the bottom of said can. The tube B is retained at the center of the tube H, and the liquid and air is prevented from rising be- H tween them by a ring or coupling, I, secured inside of the tube H and internally threaded to receive and engage the end of said tube B, which is externally threaded and forms an air tight joint with said ring I. The coupling 7 ring I may be formed in various ways of any suitable material, and it may be replaced or supplemented by closely-fitting leather washers h h, placed about said tube B, between it and the surrounding tube H. \Vithout either 3 said ring or washers the tube H may be employed-to advantage, since it insures an airtight joint in the upper part of the can about the cap, and even if air or a small amount of oil or liquid should escape from the interior of 8 I the tube about the cap the discharge through D tubeB would notbe materially affected thereby.

a is a wire passing through the entire length of tube B, terminating at the end within the can in the bulb or valve E, which, when 0 closed, forms a tight joint with the lower end of tube B and formed at the outer exposed end into the thumb-piece b. The elasticityof the wire a causes it to bear against the outer walls of tube B and thereby retain the valve 9 E in whatever position it may be placed. To prevent any drip from the discharge end of spout B, when the valve E is closed, the overhanging arm of said spout may be slightly inclined toward the can, so as to be drained back I into thesame.

It is essential to the proper working of my device that the entire upper part of the can about the tube H should be air-tight, It is not essential, however, that the cap G should be air-tight, and a small opening or openings, 9 9, may be formed therein and through the tube H to receive and return to the receptacle any oil collecting upon the top, which should be slightly depressed toward said cap. By screwing the cap up from the top of the can the openings 9 g are exposed, and any oil which has oozed out around said capis allowed to drain back into the can; but when the cap is screwed down the openings are closed. It is obvious that any other suitable kind of stopper may be employed in place of the screwcap G without changing the operation of the device.

My improved device operates as follows: After the receptacle or reservoir has been filled with liquid and the cap or stopper has been properly replaced, whenever it is desired to withdraw or expel a portion of the liquid the bulb is compressed, thereby opening the valve d,-forci11g air through the tubes F and G into the upper part of the can, and compressing the air in the can above the liquid. As the bulbD is released the valve d closes, preventing the air within the can from escaping back into the bulb, the valve 0 is opened, and the bulb D is, by its own expansive force, refilled with air, which is in like manner forced into the can by the repeated compression of said bulb. \Vhen the bulb E is lowered, by raising the thumb-piece b, which is connected therewith by wire a, the receiving end of the tube B is thereby opened, and the pressure of the compressed air upon the surface of the liquid forces the same up through the tube B and out at its overhanging orifice. By depressing the thumb-piece B the valve E is closed and the flow of liquid from tube B is instantly stopped. The tube H and couplingring I or washers h h prevent escape of air about cap G, which can with difficulty be made air-tight, and assists to completely expel the contents of the receptacle.

For use with acids the tubes B and C may bemade of glass. It is obvious that my improvements may be applied to cans or receptacles of various styles and shapes without departure from the spirit of my invention. They may be employed to advantage in gasoline and oil stoves for raising the oil from the reservoir to the burners.

Iclaim- 1. The combination, with an oil-receptacle, A, of an air-pump, D, applied thereto, tube H, attached by an air-tight joint to the top of said receptacle and extending within the same to the lower part thereof, tube B, extending from near the bottom of said receptacle up through said tube H and formed at its protruding end with a discharge-spout, and astopper arranged to close the upper end of said tube H, substantially as and for the purposes set forth.

2. The combination, with an oil-receptacle, A, of the flexible bulb D, connectedtherewith and provided with inwardly and outwardly opening valves 0 and (1, tube H, attached by an air-tightjoint to the top of said receptacle and extending within the same to the lower part thereof, tube B, extending from near the bottom of said receptacle up through said tube H and formed at its protruding end with a discharge-spout, and a stopper arranged to close the upper end of said tube H, substan tially as and for the purposes set forth.

3. The combination of the valvular bulb E, discharge-tube B, and wire a, attached to said bulb, passing through said tube and provided at its protruding end with a thumb-piece, l), substantially as and for thepurposes set forth.

4. The combination, with the receptacle A, of the dischargetube B, tube H, surrounding said tube B within said receptacle, and ring I, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

HORACE L. HAUSER.

\Vitnesses:

H. BoTToM, Gnoucn GoLL. 

